Blackpool, Odense and New York Red Bulls are all interested in the 21-year-old forward, too
Liverpool have rejected an offer from Basel for striker Liam Millar.
The Canada international is expected to leave the Reds this summer, and the Swiss side have emerged as surprise front-runners to land the 21-year-old.
Blackpool, Odense and New York Red Bull are also keen on the pacy forward, who can play as a winger or as a centre forward, and who made 27 appearances on loan at Charlton in League One last season.